D

Index

[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]

D channel
D-mark (demarc)
DAC (digital-to-analog conversion)
data closet
data link layer, OSI model
DATABASE DEL command, AGI
database del command, Asterisk CLI
DATABASE DELTREE command, AGI
database deltree command, Asterisk CLI
DATABASE GET command, AGI
database get command, Asterisk CLI
DATABASE PUT command, AGI
database put command, Asterisk CLI
database show command, Asterisk CLI
datagram
        defined in network layer
        reliability of delivery
DataOnCall UniFAX service provider
DATETIME variable, Asterisk
DBdel command, Asterisk
DBdeltree command, Asterisk
DBget command, Asterisk
DBput command, Asterisk
DeadAGI command, Asterisk
debug channel command, Asterisk CLI
decoding
demarc (D-mark)
Demarc ( demarcation point)
demux
denial of service (DoS) attack
department, extensions based on
DHCP (Dynamic Host Configuration Protocol)
DHCP lease, expiration of
DHCP server
Dial command, Asterisk 2nd 3rd 4th
dial-around, for emergency dispatch 2nd
dial-peer configuration
dial-peers
dial-plan 2nd
        administering
        Asterisk
        commands for, list of
        configuration
        inspecting
        securing
        string processing in
dial-tone providers offerring VoIP
dial-tone service providers
dial-tone trunks 2nd 3rd 4th
        capacity of
        connecting to VoIP network or PBX
        for intraorganization calls
        how many to use
dial-tone, losing periodically
dial-up, VoIP over
Dialogic products
DID (direct inward dial)
        extensions based on
        fax routing using
DiffServ Code Points (DSCP) classes
DiffServ standard 2nd
        advantages of
        decision point, creating
        iptables edge router, configuring for
        when to use
digital endpoints
digital signal transmission
digital subscriber line (DSL), MDFs facilitating
Digital Telephony
digital-to-analog conversion (DAC)
digitizing
DigitTimeout command, Asterisk
Digium
        E100P interface card
        IAXy i100 ATA, codecs supported
        S100I interface card
        sponsor of Asterisk
        T100P interface card
        TDM400P interface card
        TE400 Series interface card
        X100P interface card 2nd
direct inward dial (DID)
directories 2nd
Directory command, Asterisk
directory services
DISA command, Asterisk
disallow keyword, Asterisk
disaster survivability
distinctive ring detection
distortion of signal
distributed model
Distributed Universal Number Discovery (DUNDi)
distribution frames
        CP distribution frames
        main (MDF)
        PSTN
DIVR Systems
DMZ (demilitarized zone) 2nd
DND (do not disturb)
DNS (domain name service) server 2nd
DNS resolution 2nd
do not disturb (DND)
dollar sign ($), preceding variables
dont include command, Asterisk CLI
DoS (denial of service) attack
dry lines
dry pairs
DS0 channel 2nd 3rd 4th
DS1 circuit
DS3 circuit
DSCP (DiffServ Code Points) classes
DSL (digital subscriber line), MDFs facilitating
DSU/CSU device 2nd
DTMF (dual-tone multifrequency)
DTMF digits
DTMF tones
dumb transport
dump agihtml command, Asterisk CLI
DUNDi (Distributed Universal Number Discovery)
Dynamic Host Configuration Protocol (DHCP)